Messages in this thread Patch in this message | | | From | Itaru Kitayama <> | Date | Mon, 30 Oct 2023 17:54:45 +0900 | Subject | [PATCH] Lower the ptrace permissions so that the memfd_secrect test program runs without an issue. |
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--- On Ubuntu and probably other distros, ptrace permissions are tightend a bit by default; i.e., /proc/sys/kernel/yama/ptrace_score is set to 1. This cases memfd_secret's ptrace attach test fails with a permission error. Set it to 0 piror to running the program.
Signed-off-by: Itaru Kitayama <itaru.kitayama@linux.dev> --- tools/testing/selftests/mm/run_vmtests.sh | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh index 3e2bc818d566..7d31718ce834 100755 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -303,6 +303,7 @@ CATEGORY="hmm" run_test bash ./test_hmm.sh smoke # MADV_POPULATE_READ and MADV_POPULATE_WRITE tests CATEGORY="madv_populate" run_test ./madv_populate +echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope CATEGORY="memfd_secret" run_test ./memfd_secret # KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100 --- base-commit: ffc253263a1375a65fa6c9f62a893e9767fbebfa change-id: 20231030-selftest-c75b1b460817 Best regards, -- Itaru Kitayama <itaru.kitayama@linux.dev>
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